Double Acting Hollow Piston Cylinders
Double acting hollow plunger hydraulic cylinder applys to processing, maintenance and traction work. The special design of the hollow piston rod makes the tow bar or cable can pass through the hydraulic cylinder to conduct lifting or jacking operation, commonly used in the work of backward traction and forward extrusion. Equipped with interchangeable steel reinforced piston base, can also be used for regular lifting operation.
- Hollow plunger design allows for both pull and push forces
- Composite bearings increase cylinder life and side load resistance
- Hard coat finish on all surfaces resists damage and extends cylinder life
- Integral stop ring prevents plunger over-travel and is capable of withstanding the full cylinder capacity
- External safety valve to prevent accidental over-pressure
- All cylinders meet ASME B-30.1 standards
| Model | Capacity (ton.) | Stroke (mm) |
Oil capacity (cm³) | Closed height A (mm) |
Total height B (mm) |
Outside Dia. D (mm) |
Inside Dia. E (mm) |
Stroke Dia. F (mm) |
Hole Dia. G (mm) |
Weight (kg) |
| DH060050 | 60 | 50 | 402 | 180 | 230 | 158 | 123 | 90 | 54 | 24.5 |
| DH060100 | 100 | 803 | 230 | 330 | 158 | 123 | 90 | 54 | 31.5 | |
| DH100050 | 100 | 50 | 689 | 188 | 238 | 212 | 166 | 130 | 80 | 44.7 |
| DH100100 | 100 | 1379 | 238 | 338 | 212 | 166 | 130 | 80 | 56.6 | |
| DH150050 | 150 | 50 | 1118 | 200 | 250 | 258 | 210 | 170 | 100 | 69.7 |
| DH150100 | 100 | 1136 | 250 | 350 | 258 | 210 | 170 | 100 | 87.2 | |
| DH200050 | 100 | 50 | 1436 | 215 | 265 | 288 | 240 | 190 | 120 | 90.9 |
| DH200150 | 100 | 2873 | 265 | 365 | 288 | 240 | 190 | 120 | 112.0 |
Think Safety
Manufacturer’s rating of load and stroke are maximum safe limits. Good practice encourages using only 80% of these ratings!
Pump Selection
A double-acting cylinder must be powered by a pump with a 4-way valve.